<template>
  <transition name="dialog-fade">
    <!-- 对话框的遮罩层 -->
    <div class="hm-dialog__wrapper" v-show="visible" @click.self="handleClose">
      <div class="hm-dialog" :style="{width:width,marginTop:top}">
        <div class="hm-dialog__header">
          <!-- 规定传了slot，span不生成，没传slot，生成span -->
          <slot name="title">
            <span class="hm-dialog__title">{{title}}</span>
          </slot>
          <button class="hm-dialog__headerbtn" @click.stop="handleClose">
            <i class="hm-icon-close"></i>
          </button>
        </div>
        <div class="hm-dialog__body">
          <!-- 默认插槽 -->
          <slot></slot>
        </div>
        <div v-if="$slots.footer" class="hm-dialog__footer">
          <slot name="footer"></slot>
        </div>
      </div>
    </div>
  </transition>
</template>

<script>
export default {
  name: "hmDialog",
  props: {
    title: {
      type: String,
      default: "提示",
    },
    width: {
      type: String,
      default: "50%",
    },
    top: {
      type: String,
      default: "15vh",
    },
    visible: {
      type: Boolean,
      default: false,
    },
  },
  methods: {
    //    handleClose(){
    //      this.$emit('close',false)
    //    },
    handleClose() {
      this.$emit("close", false);
    },
  },
};
</script>

<style lang="scss" scoped>
.hm-dialog__wrapper {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: auto;
  margin: 0;
  z-index: 2001;
  background-color: rgba(0, 0, 0, 0.5);

  .hm-dialog {
    position: relative;
    margin: 15vh auto 50px;
    background: #fff;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    box-sizing: border-box;
    width: 30%;

    &__header {
      padding: 20px 20px 10px;
      .hm-dialog__title {
        line-height: 24px;
        font-size: 18px;
        color: #303133;
      }
      .hm-dialog__headerbtn {
        position: absolute;
        top: 20px;
        right: 20px;
        padding: 0;
        background: transparent;
        border: none;
        outline: none;
        cursor: pointer;
        font-size: 16px;
        .el-icon-close {
          color: #909399;
        }
      }
    }

    &__body {
      padding: 30px 20px;
      color: #606266;
      font-size: 14px;
      word-break: break-all;
    }
    &__footer {
      padding: 10px 20px 20px;
      text-align: right;
      box-sizing: border-box;
      ::v-deep .hm-button:first-child {
        margin-right: 20px;
      }
    }
  }
}

.dialog-fade-enter-active {
  animation: fade 0.5s;
}

.dialog-fade-leave-active {
  animation: fade 0.5s reverse;
}

@keyframes fade {
  0% {
    opacity: 0;
    transform: translateY(-20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0px);
  }
}
</style>